Blender Cycles Image Renders in Black and White

I’m trying to make an image in Blender with the cycles engine but when I render it, there’s no color. How do I get the color to work?

How do I get the color to work?
How are we supposed to know waht you have/haven’t done if you supply such little info. For all support questions it is mandatory to supply at the very least a demo .blend file that clearly demonstrates the problem. Do so.

Why has nobody taken a look at the file yet?

Check your compositing node setup. The Dilate/Erode node is to blame.